Antimicrobial Activity and Physicochemical Characterization of Oregano, Thyme and Clove Leave Essential Oils, Nonencapsulated and Nanoencapsulated, Using Emulsification

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Ruiz Gonzalez Nancy; Lopez Malo Aurelio; Palou Enrique; Ramirez Corona Nelly; Jimenez Munguia Maria Teresa

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Journal: Applied Food Biotechnology Year:2019 | Volume:6 | Issue:4 Page(s): 237-246

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Title

Antimicrobial Activity and Physicochemical Characterization of Oregano, Thyme and Clove Leave Essential Oils, Nonencapsulated and Nanoencapsulated, Using Emulsification

Author(s)

Keywords

Antimicrobials

Essential oils

Nanoemulsions

Nanoencapsulation

Pathogens

Abstract

Background and objective: Functional properties of Essential oils are attributed to their components, many of which exhibit antimicrobial activity against pathogenic and spoilage microorganisms in a wide variety of foods. However, Essential oils are unstable compounds; therefore, they can be encapsulated for a better protection and increase of functionality. In this work, antimicrobial activities of oregano, thyme and clove leave Essential oils (non-encapsulated and nanoencapsulated) were assessed against Escherichia coli ATCC 29922, Salmonella typhimurium ATCC 14028 and Staphylococcus aureus ATCC 25923 using emulsification. Material and methods: The Essential oils were characterized based on their physicochemical properties. Nanoemulsions were prepared, using 5% (w w-1) of Essential oils, and then characterized based on their physical properties, stability and encapsulation efficiency. The microdilution antimicrobial assay was carried out to assess minimum inhibitory concentration and minimum bactericidal concentration of the Essential oils and their Nanoemulsions. Data from physical properties of the Essential oils and physical properties, stability and encapsulation efficiency of the Nanoemulsions were statistically analyzed. Results and conclusion: Antimicrobial activity of the Essential oils showed decreases in minimum inhibitory concentration by 27-60% for the nanoencapsulated oils, compared to nonencapsulated oils. Nanoencapsulated and nonencapsulated oregano Essential oils exhibited the lowest minimum inhibitory concentration and minimum bactericidal concentration values. Based on the results, nanoencapslulated Essential oils may further be used in various foods to avoid microbial contaminations.

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APA: Copy

Ruiz Gonzalez, Nancy, Lopez Malo, Aurelio, Palou, Enrique, Ramirez Corona, Nelly, & Jimenez Munguia, Maria Teresa. (2019). Antimicrobial Activity and Physicochemical Characterization of Oregano, Thyme and Clove Leave Essential Oils, Nonencapsulated and Nanoencapsulated, Using Emulsification. APPLIED FOOD BIOTECHNOLOGY, 6(4 ), 237-246. SID. https://sid.ir/paper/269723/en

Vancouver: Copy

Ruiz Gonzalez Nancy, Lopez Malo Aurelio, Palou Enrique, Ramirez Corona Nelly, Jimenez Munguia Maria Teresa. Antimicrobial Activity and Physicochemical Characterization of Oregano, Thyme and Clove Leave Essential Oils, Nonencapsulated and Nanoencapsulated, Using Emulsification. APPLIED FOOD BIOTECHNOLOGY[Internet]. 2019;6(4 ):237-246. Available from: https://sid.ir/paper/269723/en

IEEE: Copy

Nancy Ruiz Gonzalez, Aurelio Lopez Malo, Enrique Palou, Nelly Ramirez Corona, and Maria Teresa Jimenez Munguia, “Antimicrobial Activity and Physicochemical Characterization of Oregano, Thyme and Clove Leave Essential Oils, Nonencapsulated and Nanoencapsulated, Using Emulsification,” APPLIED FOOD BIOTECHNOLOGY, vol. 6, no. 4 , pp. 237–246, 2019, [Online]. Available: https://sid.ir/paper/269723/en

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